Não informado. (1971). International Wildlife. International Wildlife Federation.
Lua i Stíl Chicago (17ú heag.)Não informado. International Wildlife. Washington: International Wildlife Federation, 1971.
Lua MLA (8ú heag.)Não informado. International Wildlife. International Wildlife Federation, 1971.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.